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Guglielmelli A, D’Aquila P, Palermo G, Dell’Aglio M, Passarino G, Strangi G, Bellizzi D. Role of the Human Serum Albumin Protein Corona in the Antimicrobial and Photothermal Activity of Metallic Nanoparticles against Escherichia coli Bacteria. ACS Omega 2023; 8:31333-31343. [PMID: 37663494 PMCID: PMC10468930 DOI: 10.1021/acsomega.3c03774] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 06/29/2023] [Indexed: 09/05/2023]
Abstract
The emergence of antibiotic-resistant bacteria has become a major public health concern, leading to growing interest in alternative antimicrobial agents. The antibacterial activity of metal nanoparticles (NPs) has been extensively studied, showing that they can effectively inhibit the growth of various bacteria, including both Gram-positive and -negative strains. The presence of a protein corona, formed by the adsorption of proteins onto the NP surface in biological fluids, can significantly affect their toxicity. Understanding the effect of the protein corona on the antimicrobial activity of metal NPs is crucial for their effective use as antimicrobial agents. In this study, the antimicrobial activity of noble metal NPs, such as platinum (Pt), silver (Ag), and gold (Au) with and without the human serum albumin (HSA) protein corona against Escherichia coli strains, was investigated. In addition, the plasmonic photothermal effect related to AuNPs, which resulted to be the most biocompatible compared to the other considered metals, was evaluated. The obtained results suggest that the HSA protein corona modulated the antimicrobial activity exerted by the metal NPs against E. coli bacteria. These findings may pave the way for the investigation and development of innovative nanoapproaches to face antibiotic resistance emergence.
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Affiliation(s)
- Alexa Guglielmelli
- Department
of Physics, NLHT-Lab, University of Calabria
and CNR-NANOTEC, Institute of Nanotechnology, 87036 Rende, Italy
| | - Patrizia D’Aquila
- Department
of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy
| | - Giovanna Palermo
- Department
of Physics, NLHT-Lab, University of Calabria
and CNR-NANOTEC, Institute of Nanotechnology, 87036 Rende, Italy
| | - Marcella Dell’Aglio
- CNR-IFN,
Institute for Photonics and Nanotechnologies, c/o Physics Department, University of Bari, Via Amendola 173, 70126 Bari, Italy
| | - Giuseppe Passarino
- Department
of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy
| | - Giuseppe Strangi
- Department
of Physics, NLHT-Lab, University of Calabria
and CNR-NANOTEC, Institute of Nanotechnology, 87036 Rende, Italy
- Department
of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, Ohio 44106, United States
| | - Dina Bellizzi
- Department
of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy
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2
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Lininger A, Palermo G, Guglielmelli A, Nicoletta G, Goel M, Hinczewski M, Strangi G. Chirality in Light-Matter Interaction. Adv Mater 2023; 35:e2107325. [PMID: 35532188 DOI: 10.1002/adma.202107325] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 04/07/2022] [Indexed: 06/14/2023]
Abstract
The scientific effort to control the interaction between light and matter has grown exponentially in the last 2 decades. This growth has been aided by the development of scientific and technological tools enabling the manipulation of light at deeply sub-wavelength scales, unlocking a large variety of novel phenomena spanning traditionally distant research areas. Here, the role of chirality in light-matter interactions is reviewed by providing a broad overview of its properties, materials, and applications. A perspective on future developments is highlighted, including the growing role of machine learning in designing advanced chiroptical materials to enhance and control light-matter interactions across several scales.
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Affiliation(s)
- Andrew Lininger
- Department of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, OH, 44106, USA
| | - Giovanna Palermo
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, Rende, 87036, Italy
| | - Alexa Guglielmelli
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, Rende, 87036, Italy
| | - Giuseppe Nicoletta
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, Rende, 87036, Italy
| | - Madhav Goel
- Department of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, OH, 44106, USA
| | - Michael Hinczewski
- Department of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, OH, 44106, USA
| | - Giuseppe Strangi
- Department of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, OH, 44106, USA
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, Rende, 87036, Italy
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3
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Guglielmelli A, Bartucci R, Rizzuti B, Palermo G, Guzzi R, Strangi G. The interaction of tryptophan enantiomers with model membranes is modulated by polar head type and physical state of phospholipids. Colloids Surf B Biointerfaces 2023; 224:113216. [PMID: 36848783 DOI: 10.1016/j.colsurfb.2023.113216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/29/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023]
Abstract
The mutual influence of chiral bioactive molecules and supramolecular assemblies is currently being studied in many research fields, including medical-pharmaceutical applications. Model membranes of phospholipids, such as the zwitterionic dipalmitoylphosphatidylcholine (DPPC) and the anionic dipalmitoylphosphatidylglycerol (DPPG), interact with a variety of chiral compounds that include amino acids. In this work, the interaction of tryptophan enantiomers, L-Trp and D-Trp, on DPPC and DPPG bilayers was investigated by using differential scanning calorimetry, attenuated total reflectance-Fourier transform infrared and spin-label electron spin resonance spectroscopies as well as molecular docking simulations. The results show that Trp enantiomers slightly perturb the bilayer thermotropic phase transitions. For both membranes, O atoms in the carbonyl groups have a propensity to act as acceptors of a (weak) hydrogen bond. The Trp chiral forms also promote formation of hydrogen bonds and/or hydration in the PO2- moiety of the phosphate group, especially for the DPPC bilayer. In contrast, they interact more closely with the glycerol group of DPPG polar head. Only for DPPC bilayers, both enantiomers increase the packing of the first hydrocarbon chain segments for temperatures through the gel state, whereas they do not affect the lipid chain order and mobility in the fluid state. The results are consistent with a Trp association in the upper region of the bilayers without permeation in the innermost hydrophobic region. The findings suggest that neutral and anionic lipid bilayers are differently sensitive to amino acid chirality.
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Affiliation(s)
- Alexa Guglielmelli
- Department of Physics, NLHT Lab., University of Calabria, 87036 Rende, Italy; CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy
| | - Rosa Bartucci
- Department of Chemistry and Chemical Technologies, Molecular Biophysics Laboratory, University of Calabria, 87036 Rende, Italy.
| | - Bruno Rizzuti
- CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy; Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain
| | - Giovanna Palermo
- Department of Physics, NLHT Lab., University of Calabria, 87036 Rende, Italy; CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy
| | - Rita Guzzi
- CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy; Department of Physics, Molecular Biophysics Laboratory, University of Calabria, 87036 Rende, Italy
| | - Giuseppe Strangi
- Department of Physics, NLHT Lab., University of Calabria, 87036 Rende, Italy; CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy; Department of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, OH 44106 USA
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Candreva A, De Rose R, Perrotta ID, Guglielmelli A, La Deda M. Light-Induced Clusterization of Gold Nanoparticles: A New Photo-Triggered Antibacterial against E. coli Proliferation. Nanomaterials (Basel) 2023; 13:nano13040746. [PMID: 36839113 PMCID: PMC9967119 DOI: 10.3390/nano13040746] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 05/14/2023]
Abstract
Metallic nanoparticles show plasmon resonance phenomena when irradiated with electromagnetic radiation of a suitable wavelength, whose value depends on their composition, size, and shape. The damping of the surface electron oscillation causes a release of heat, which causes a large increase in local temperature. Furthermore, this increase is enhanced when nanoparticle aggregation phenomena occur. Local temperature increase is extensively exploited in photothermal therapy, where light is used to induce cellular damage. To activate the plasmon in the visible range, we synthesized 50 nm diameter spherical gold nanoparticles (AuNP) coated with polyethylene glycol and administered them to an E. coli culture. The experiments were carried out, at different gold nanoparticle concentrations, in the dark and under irradiation. In both cases, the nanoparticles penetrated the bacterial wall, but a different toxic effect was observed; while in the dark we observed an inhibition of bacterial growth of 46%, at the same concentration, under irradiation, we observed a bactericidal effect (99% growth inhibition). Photothermal measurements and SEM observations allowed us to conclude that the extraordinary effect is due to the formation, at low concentrations, of a light-induced cluster of gold nanoparticles, which does not form in the absence of bacteria, leading us to the conclusion that the bacterium wall catalyzes the formation of these clusters which are ultimately responsible for the significant increase in the measured temperature and cause of the bactericidal effect. This photothermal effect is achieved by low-power irradiation and only in the presence of the pathogen: in its absence, the lack of gold nanoparticles clustering does not lead to any phototoxic effect. Therefore, it may represent a proof of concept of an innovative nanoscale pathogen responsive system against bacterial infections.
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Affiliation(s)
- Angela Candreva
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy
- CNR-NANOTEC, Institute of Nanotechnology U.O.S, Cosenza, 87036 Rende, Italy
| | - Renata De Rose
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy
| | - Ida Daniela Perrotta
- Department of Biology, Ecology and Earth Sciences, Centre for Microscopy and Microanalysis (CM2), University of Calabria, 87036 Rende, Italy
| | - Alexa Guglielmelli
- CNR-NANOTEC, Institute of Nanotechnology U.O.S, Cosenza, 87036 Rende, Italy
- Department of Physics, NLHT-Lab, University of Calabria, 87036 Rende, Italy
| | - Massimo La Deda
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy
- CNR-NANOTEC, Institute of Nanotechnology U.O.S, Cosenza, 87036 Rende, Italy
- Correspondence:
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5
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Palermo G, Lininger A, Guglielmelli A, Ricciardi L, Nicoletta G, De Luca A, Park JS, Lim SWD, Meretska ML, Capasso F, Strangi G. All-Optical Tunability of Metalenses Permeated with Liquid Crystals. ACS Nano 2022; 16:16539-16548. [PMID: 36215293 DOI: 10.1021/acsnano.2c05887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Metasurfaces have been extensively engineered to produce a wide range of optical phenomena, allowing exceptional control over the propagation of light. However, they are generally designed as single-purpose devices without a modifiable postfabrication optical response, which can be a limitation to real-world applications. In this work, we report a nanostructured planar-fused silica metalens permeated with a nematic liquid crystal (NLC) and gold nanoparticle solution. The physical properties of embedded NLCs can be manipulated with the application of external stimuli, enabling reconfigurable optical metasurfaces. We report the all-optical, dynamic control of the metalens optical response resulting from thermoplasmonic-induced changes of the NLC solution associated with the nematic-isotropic phase transition. A continuous and reversible tuning of the metalens focal length is experimentally demonstrated, with a variation of 80 μm (0.16% of the 5 cm nominal focal length) along the optical axis. This is achieved without direct mechanical or electrical manipulation of the device. The reconfigurable properties are compared with corroborating numerical simulations of the focal length shift and exhibit close correspondence.
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Affiliation(s)
- Giovanna Palermo
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, 87036 Rende, Italy
| | - Andrew Lininger
- Department of Physics, Case Western Reserve University, 2076 Adelbert Road, Cleveland, Ohio 44106, United States
| | - Alexa Guglielmelli
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, 87036 Rende, Italy
| | | | - Giuseppe Nicoletta
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, 87036 Rende, Italy
| | - Antonio De Luca
- Department of Physics, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, 87036 Rende, Italy
| | - Joon-Suh Park
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Nanophotonics Research Centre, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Soon Wei Daniel Lim
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Maryna L Meretska
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Federico Capasso
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Giuseppe Strangi
- Department of Physics, NLHT-Lab, University of Calabria and CNR-NANOTEC Istituto di Nanotecnologia, 87036 Rende, Italy
- Department of Physics, Case Western Reserve University, 2076 Adelbert Road, Cleveland, Ohio 44106, United States
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6
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Guglielmelli A, Rosa P, Contardi M, Prato M, Mangino G, Miglietta S, Petrozza V, Pani R, Calogero A, Athanassiou A, Perotto G, De Sio L. Biomimetic keratin gold nanoparticle-mediated in vitro photothermal therapy on glioblastoma multiforme. Nanomedicine (Lond) 2021; 16:121-138. [PMID: 33426900 DOI: 10.2217/nnm-2020-0349] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: To realize and characterize a new generation of keratin-coated gold nanoparticles (Ker-AuNPs) as highly efficient photosensitive nanosized therapeutics for plasmonic photothermal (PPT) therapy. Materials & methods: The chemical, physical, morphological and photothermal properties of Ker-AuNPs are investigated using dynamic light scattering, ζ-potential, UV-Visible, Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy, transmission electron microscopy and high-resolution thermography. In vitro experiments are performed on a human glioblastoma cell line (i.e., U87-MG), using viability assays, transmission electron microscopy, fluorescence microscopy, cytometric analyses and PPT experiments. Results: Experiments confirm the excellent biocompatibility of Ker-AuNPs, their efficient cellular uptake and localized photothermal heating capabilities. Conclusion: The reported structural and functional properties pointed out these Ker-AuNPs as a promising new tool in the field of biocompatible photothermal agents for PPT treatments against cancer-related diseases.
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Affiliation(s)
- Alexa Guglielmelli
- Department of Physics, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy.,CNR-Lab. LiCryl, Institute NANOTEC, Arcavacata di Rende 87036, Italy
| | - Paolo Rosa
- Department of Medico-surgical Sciences & Biotechnologies, Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica, Latina 79, 04100, Italy
| | - Marco Contardi
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, Genoa 30, 16163, Italy
| | - Mirko Prato
- Materials Characterization Facility, Istituto Italiano di Tecnologia, Via Morego, Genova 30, 16163, Italy
| | - Giorgio Mangino
- Department of Medico-surgical Sciences & Biotechnologies, Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica, Latina 79, 04100, Italy
| | - Selenia Miglietta
- Department of Anatomy, Histology, Forensic Medicine & Orthopaedics, Sapienza University of Rome, Via Alfonso Borelli, Rome 50, 00161, Italy
| | - Vincenzo Petrozza
- Department of Medico-surgical Sciences & Biotechnologies, Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica, Latina 79, 04100, Italy
| | - Roberto Pani
- Department of Medico-surgical Sciences & Biotechnologies, Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica, Latina 79, 04100, Italy
| | - Antonella Calogero
- Department of Medico-surgical Sciences & Biotechnologies, Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica, Latina 79, 04100, Italy
| | | | - Giovanni Perotto
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, Genoa 30, 16163, Italy
| | - Luciano De Sio
- CNR-Lab. LiCryl, Institute NANOTEC, Arcavacata di Rende 87036, Italy.,Department of Medico-surgical Sciences & Biotechnologies, Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica, Latina 79, 04100, Italy
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7
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Massimi C, Aberle O, Andrzejewski J, Audouin L, Bacak M, Balibrea J, Barbagallo M, Bečvář F, Berthoumieux E, Billowes J, Bosnar D, Brown A, Caamaño M, Calviño F, Calviani M, Cano-Ott D, Cardella R, Casanovas A, Castelluccio DM, Cerutti F, Chen YH, Chiaveri E, Clai G, Colonna N, Console Camprini P, Cortés G, Cortés-Giraldo MA, Cosentino L, Damone LA, Diakaki M, Domingo-Pardo C, Dressler R, Dupont E, Durán I, Fernández-Domínguez B, Ferrari A, Ferreira P, Finocchiaro P, Furman V, Göbel K, García AR, Gawlik A, Gilardoni S, Glodariu T, Gonçalves IF, González-Romero E, Griesmayer E, Guerrero C, Guglielmelli A, Gunsing F, Harada H, Heinitz S, Heyse J, Jenkins DG, Jericha E, Käppeler F, Kadi Y, Kalamara A, Kavrigin P, Kimura A, Kivel N, Knapova I, Kokkoris M, Krtička M, Kurtulgil D, Leal-Cidoncha E, Lederer C, Leeb H, Lerendegui-Marco J, Lonsdale SJ, Macina D, Manna A, Marganiec J, Martínez T, Masi A, Mastinu P, Mastromarco M, Maugeri EA, Mazzone A, Mendoza E, Mengoni A, Milazzo PM, Mingrone F, Mucciola R, Musumarra A, Negret A, Nolte R, Oprea A, Patronis N, Pavlik A, Perkowski J, Porras I, Praena J, Quesada JM, Radeck D, Rauscher T, Reifarth R, Rocchi F, Rubbia C, Ryan JA, Sabaté-Gilarte M, Saxena A, Schillebeeckx P, Schumann D, Sedyshev P, Smith AG, Sosnin NV, Stamatopoulos A, Tagliente G, Tain JL, Tarifeño-Saldivia A, Tassan-Got L, Valenta S, Vannini G, Variale V, Vaz P, Ventura A, Vlachoudis V, Vlastou R, Wallner A, Warren S, Weiss C, Woods PJ, Wright T, Žugec P. Measurement and analysis of 155,157Gd(n, γ) from thermal energy to 1 keV. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023901041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have measured the capture cross section of the 155Gd and 157Gd isotopes between 0.025 eV and 1 keV. The capture events were recorded by an array of 4 C6D6 detectors, and the capture yield was deduced exploiting the total energy detection system in combination with the Pulse Height Weighting Techniques. Because of the large cross section around thermal neutron energy, 4 metallic samples of different thickness were used to prevent problems related to self-shielding. The samples were isotopically enriched, with a cross contamination of the other isotope of less than 1.14%. The capture yield was analyzed with an R-Matrix code to describe the cross section in terms of resonance parameters. Near thermal energies, the results are significantly different from evaluations and from previous time-of-flight experiments. The data from the present measurement at n_TOF are publicly available in the experimental nuclear reaction database EXFOR.
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Pezzi L, Pane A, Annesi F, Losso MA, Guglielmelli A, Umeton C, De Sio L. Antimicrobial Effects of Chemically Functionalized and/or Photo-Heated Nanoparticles. Materials (Basel) 2019; 12:ma12071078. [PMID: 30986924 PMCID: PMC6479897 DOI: 10.3390/ma12071078] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 01/23/2023]
Abstract
Antibiotic resistance refers to when microorganisms survive and grow in the presence of specific antibiotics, a phenomenon mainly related to the indiscriminate widespread use and abuse of antibiotics. In this framework, thanks to the design and fabrication of original functional nanomaterials, nanotechnology offers a powerful weapon against several diseases such as cancer and pathogenic illness. Smart nanomaterials, such as metallic nanoparticles and semiconductor nanocrystals, enable the realization of novel drug-free medical therapies for fighting against antibiotic-resistant bacteria. In the light of the latest developments, we highlight the outstanding capabilities of several nanotechnology-inspired approaches to kill antibiotic-resistant bacteria. Chemically functionalized silver and titanium dioxide nanoparticles have been employed for their intrinsic toxicity, which enables them to exhibit an antimicrobial activity while, in a different approach, photo-thermal properties of metallic nanoparticles have been theoretically studied and experimentally tested against several temperature sensitive (mesophilic) bacteria. We also show that it is possible to combine a highly localized targeting with a plasmonic-based heating therapy by properly functionalizing nanoparticle surfaces with covalently linked antibodies. As a perspective, the utilization of properly engineered and chemically functionalized nanomaterials opens a new roads for realizing antibiotic free treatments against pathogens and related diseases.
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Affiliation(s)
- Luigia Pezzi
- CNR-Lab. Licryl, Institute NANOTEC, 87036 Arcavacata di Rende, Italy.
| | - Alfredo Pane
- CNR-Lab. Licryl, Institute NANOTEC, 87036 Arcavacata di Rende, Italy.
| | - Ferdinanda Annesi
- CNR-Lab. Licryl, Institute NANOTEC, 87036 Arcavacata di Rende, Italy.
| | | | - Alexa Guglielmelli
- CNR-Lab. Licryl, Institute NANOTEC, 87036 Arcavacata di Rende, Italy.
- Department of Physics, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy.
| | - Cesare Umeton
- CNR-Lab. Licryl, Institute NANOTEC, 87036 Arcavacata di Rende, Italy.
- Department of Physics, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy.
| | - Luciano De Sio
- CNR-Lab. Licryl, Institute NANOTEC, 87036 Arcavacata di Rende, Italy.
- Department of Medico-surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, 04100 Latina, Italy.
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Guglielmelli A, Rizzuti B, Guzzi R. Stereoselective and domain-specific effects of ibuprofen on the thermal stability of human serum albumin. Eur J Pharm Sci 2017; 112:122-131. [PMID: 29158196 DOI: 10.1016/j.ejps.2017.11.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/31/2017] [Accepted: 11/16/2017] [Indexed: 12/20/2022]
Abstract
Ibuprofen is one of the most used anti-inflammatory drugs, and it is transported in the blood by human serum albumin, a major plasmatic protein with a peculiar adaptability in the binding of several different ligands. We have characterized the interaction between albumin and ibuprofen, either in racemic mixture, or in the S(+) and R(-) enantiomeric forms, by using differential scanning calorimetry, attenuated total reflectance Fourier transform infrared spectroscopy, and molecular dynamics simulation. The results show that increasing concentrations of ibuprofen (up to sixfold drug/protein molar ratio) improve the protein resistance to thermal unfolding without altering the secondary structure. Deconvolution of the calorimetric thermal profiles at different albumin/ibuprofen molar ratios demonstrates a selective stability of the protein domains where the binding sites of the drug are localized. At the highest ibuprofen concentration, the melting temperature increased by about 10°C with respect to the drug-free protein, whereas the unfolding enthalpy maintains an almost constant value. Furthermore, the degree of protein stabilization depends upon the chirality of the drug, and the R(-) enantiomer is more effective compared to the S(+) form. The stability is supported by molecular dynamics simulations, showing that ibuprofen maintains a stable coordination in the most favorable binding sites, leading to a more compact protein structure at high temperature. The overall results attest that the binding of ibuprofen determines on albumin a stereoselective and domain-specific stabilization with a predominantly entropic character, contributing to clarify significant aspects of the molecular mechanism of protein/drug interaction.
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Affiliation(s)
- Alexa Guglielmelli
- Molecular Biophysics Laboratory, Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Bruno Rizzuti
- CNR-NANOTEC, Licryl-UOS Cosenza and CEMIF.Cal, Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Rita Guzzi
- Molecular Biophysics Laboratory, Department of Physics, University of Calabria, 87036 Rende, Italy.
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10
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Calabrò S, Tudisco R, Grossi M, Bovera F, Cutrignelli M, Guglielmelli A, Piccolo V, Infascelli F. In vitrofermentation characteristics of corn and sorghum silages. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2007.s2.559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Calabrò S, Guglielmelli A, Iannaccone F, Danieli PP, Tudisco R, Ruggiero C, Piccolo G, Cutrignelli MI, Infascelli F. Fermentation kinetics of sainfoin hay with and without PEG. J Anim Physiol Anim Nutr (Berl) 2011; 96:842-9. [PMID: 22168179 DOI: 10.1111/j.1439-0396.2011.01260.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The in vitro gas production technique was applied to evaluate the biological activity of tannins in sainfoin (Onobrychis viciifolia Scop.) hay cut at four progressive phenological stages. The buffalo (Bubalus bubalis) rumen fluid was used as inoculum, polyethylene glycol (PEG) was added as specific binding agent and an alfalfa hay (AH) was used as control. All samples were analysed for chemical composition and condensed tannin (CTs). According to the phenological stage of sainfoin, crude protein gradually decreased [from 219 to 122 g/kg dry matter (DM)] and neutral detergent fibre (NDF) increased (from 391 to 514 g/kg DM). Condensed tannins showed the highest value at the first phenological stage [31.5 mg catechin equivalents (CE)/g DM], and their level significantly decreased at the subsequent growth stages. Gas production and fermentation rate were significantly affected by substrate type and PEG addition. The first stage of sainfoin showed the lowest value of gas and volatile fatty acids production and the slowest fermentation kinetics compared with the other samples, when incubated without PEG, because of the CTs effect. The incubation with PEG improved the fermentation process of the first stage of sainfoin, but no effect was registered on AH, where CTs were not detected. Among the sainfoin samples, the slowest kinetics with PEG was observed in the hay harvested at the fourth stage, probably due to its chemical composition. The use of PEG allowed to verify the effect of tannins on the in vitro fermentation characteristics of sainfoin hay.
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Affiliation(s)
- S Calabrò
- Department of Animal Science and Food Control, Faculty of Veterinary Medicine, University of Napoli Federico II, Napoli, Italy.
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Tudisco R, Calabrò S, Grossi M, Piccolo G, Guglielmelli A, Cutrignelli MI, Caiazzo C, Infascelli F. Influence of replacing corn silage with barley silage in the diets of buffalo cows on milk yield and quality. Vet Res Commun 2011; 34 Suppl 1:S193-6. [PMID: 20464483 DOI: 10.1007/s11259-010-9406-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A 150-day trial was carried out on 40 Italian Mediterranean buffalo cows that, immediately after calving, were equally divided into two homogeneous groups (M and O) based on the number of calving events and previous milk yield. The animals were fed (16 kg dry matter (DM)/head) two isoenergy/isoprotein diets (NEl: 6.39 MJ/kg DM; 15.4 CP% DM), composed of corn (diet M) or barley silage (diet O) concentrate, alfalfa hay, and a vitamin-mineral supplement. The fermentation characteristics of both silage diets were evaluated by an in vitro gas production technique, and their nutritional values were calculated as follows: NEl (MJ/kg DM) = 0.54 + 0.0959 GP + 0.0038 CP + 0.0001733 CP(2), where GP is the gas production after 24 h of incubation (ml/200 mg DM) and CP is the protein content of silage (g/kg DM). The nutritional values of the silages were slightly different (4.16 vs. 4.14 MJ/kg DM for M and O, respectively) likely due to the high content of hemicellulose in the O diet (22.0 vs. 16.9%). Average milk yield did not differ between the groups; instead, milk fat (8.39 vs. 9.06%; P < 0.01) and protein (4.41 vs. 4.60%; P < 0.01) levels were significantly higher in the O group. The results elicit great interest in southern Italy where corn cultivation is adversely affected by the high cost of irrigation.
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Affiliation(s)
- R Tudisco
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti, Facoltà di Medicina Veterinaria, Università degli Studi di Napoli Federico II, Napoli, Italy.
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Tudisco R, Cutrignelli MI, CalabrÒ S, Guglielmelli A, Infascell F. Investigation on genetically modified soybean (RoundUp Ready) in goat nutrition: DNA detection in suckling kids. Italian Journal of Animal Science 2007. [DOI: 10.4081/ijas.2007.1s.380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- R. Tudisco
- Dipartimento di Scienze Zootecniche e Ispezione degli Alimenti, Università di Napoli Federico II, Italy
| | - M. I. Cutrignelli
- Dipartimento di Scienze Zootecniche e Ispezione degli Alimenti, Università di Napoli Federico II, Italy
| | - S. CalabrÒ
- Dipartimento di Scienze Zootecniche e Ispezione degli Alimenti, Università di Napoli Federico II, Italy
| | - A. Guglielmelli
- Dipartimento di Scienze Zootecniche e Ispezione degli Alimenti, Università di Napoli Federico II, Italy
| | - F. Infascell
- Dipartimento di Scienze Zootecniche e Ispezione degli Alimenti, Università di Napoli Federico II, Italy
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Piccolo G, Marono S, Badini E, Guglielmelli A, Morra F, Nizza A. Effect of stocking density and protein/fat ratio of the diet on growth of Dover sole ( Solea solea). Italian Journal of Animal Science 2007. [DOI: 10.4081/ijas.2007.1s.816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- G. Piccolo
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti. Università degli Studi di Napoli Federico II, Italy
| | - S. Marono
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti. Università degli Studi di Napoli Federico II, Italy
| | - E. Badini
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti. Università degli Studi di Napoli Federico II, Italy
| | - A. Guglielmelli
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti. Università degli Studi di Napoli Federico II, Italy
| | - F. Morra
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti. Università degli Studi di Napoli Federico II, Italy
| | - A. Nizza
- Dipartimento di Scienze Zootecniche e Ispezione degli alimenti. Università degli Studi di Napoli Federico II, Italy
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